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-rw-r--r--src/core/ext/filters/client_channel/lb_policy/round_robin/round_robin.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/src/core/ext/filters/client_channel/lb_policy/round_robin/round_robin.c b/src/core/ext/filters/client_channel/lb_policy/round_robin/round_robin.c
index 3c8520cc1c..e7d38f751d 100644
--- a/src/core/ext/filters/client_channel/lb_policy/round_robin/round_robin.c
+++ b/src/core/ext/filters/client_channel/lb_policy/round_robin/round_robin.c
@@ -571,11 +571,13 @@ static void rr_connectivity_changed_locked(grpc_exec_ctx *exec_ctx, void *arg,
GPR_ASSERT(sd->subchannel_list == p->latest_pending_subchannel_list);
GPR_ASSERT(!sd->subchannel_list->shutting_down);
if (GRPC_TRACER_ON(grpc_lb_round_robin_trace)) {
+ const unsigned long num_subchannels =
+ p->subchannel_list != NULL ? p->subchannel_list->num_subchannels
+ : 0;
gpr_log(GPR_DEBUG,
"[RR %p] phasing out subchannel list %p (size %lu) in favor "
"of %p (size %lu)",
- (void *)p, (void *)p->subchannel_list,
- (unsigned long)p->subchannel_list->num_subchannels,
+ (void *)p, (void *)p->subchannel_list, num_subchannels,
(void *)sd->subchannel_list,
(unsigned long)sd->subchannel_list->num_subchannels);
}